Manuscript Summary: A composite manuscript from the 11th century, possibly written at the Abbey of St. Gall. The main content of the codex consists of commentaries by Boethius on Cicero's Topica and on the Isagoge by the neoplatonic philosopher Porphyrius († after 300), Porphyrius's Isagoge itself and assorted other texts. Among these are, for example, small pieces by Walahfried Strabo (Regulae metricae; a letter with the incipit Domino meo benedictus salus et vita) and by Marius Victorinus, a 4th century Roman scholar (De generatione divina). (smu)